Valve



Dec, 9, 1924.

' B.TRAGER VALVE4 o'igina Filed sept. 19, 1922 A TTORNE Y.

Patented Dec. 9, 1924.

UNITED STATES 1,518,233 PATENT OFFICE.

BERNARD TBAGER, F NEW YORK, N. Y., ASSIGNOB OF ONE-FOURTH TO CHARLES B. HGKENNA, OF NEW YORK, N. Y.

VALVE.

Application iiled September 19,1922, Serial No. 589,254. Renewed September 25, 1924.

To all whom t may concern:

Be it known that I, BERNARD TRAGER, a citizen of the United States, residing at lNew York city, in the county of Bronx and 6 State of New York, have invented certain new and useful Improvements in Valves, of which the following is a specification.

This invention relates to valvesand more particularly to a novel and improved air valve for pneumatic devices and apparatus such as swimming belts, life preset-vers, tires and other indatable objects of an analof gous nature.

The primary object of my invention is the provision of a. valve for pneumatic devices and particularly llife belts, wherein the entire valve structure when seated, is disposed below the normal level of the pneumatic body so that the cap will not protrude when the device is inflated and will otherwise be somewhat concealed but accessible when it is dired to inflate the said object.

The further and continued object of my invention is the provision of an extremely simple and highly etlicient valve adapted for use in connection with various types of pneumatic devices and one wherein the parts are extremel simple in construction, easily assembled, ighly eiiicient in operation, 4practical, and otherwise capable of being manufactured at an extremely lowr cost whereby its commercial possibilities are greatly enhanced.

I accomplish the above objects and others which will become apparent as the description proceeds and when taken in connection with the accompanying drawings which show a preferred embodiment of my invention, wherein:

`Figure 1 is a vertical section showing the valve in position.

Figure 2 is a view partly in section showing the application of the valve toa pneumatic device such as a life belt.

Figure 3 is a plan showing the bottom of the central sleeve.

Figure 4 is a side view of a conventional tye of locking key, and

igure 5 is a plan view of the key.

Referring now to the drawings, wherein like reference characters designate corresponding parts throughout the several views, 5 designates a pneumatic casing such as a life belt or life preserver which is prothe stem above referred to. The stem 6 is externally threaded as at 8 throughout its length and is adapted tov receive a concave lock washer 9 and a substantially semi-circular lock nut 10, the latter being provided with key way slots 11 whereby the same may be screwed tightly on the'stem and over the washer 9 so as to tightly secure the rubberl or material of the pneumatic device against the concaved base portion 7V above referred to.

The internally bored portion of the stem is internally threaded throughout the major portion thereof to receive the externally threaded sleeve 13, the slightly enlarged base 14 of which is also provided with keyway slot 15 whereby said sleeve may be screwed tightly into the stem 6 in the manner clearly shown by Figure 1 of the drawing. The sleeve 13 is provided with an enlarged central bore 16 which communicates with the interior of the stem, the top ot said sleeve bein hollowed out to receive a valve 17 of a vave stem 18, the latter extending upwardly through an aperture 19 centrally of the top of the stem 6. A valve seat 20 to receive the top or frusto-conical portion of the valve 17 communicates with the bore 21 in the head of the stem 6, which bore receives a coil spring 22 on the valve stem 18, normally maintaining the valve 17 in its position on the seat of the sleeve 13. The sleeve 13 is further provided with radially disposed inlets 23, two of which inlets extend through the keyhole slot 15. The upper end of the stem 6 is internally bored and Vinternall threaded to receive and accommodate t e washer 24 and externally threaded knurled nut or cap 25 which cap is cen- Atrally bored as shown at 26 to permitof the raising and lowering of the valve stem 18 when the device is being inflated. The valve 17 above referred to is referably provided the valve 25 is replaced the pressure intern ally being equal, the valve will seat itself. A

related In Figures 4 and 5, I have shown and provided a conventional type of a double end key for locking the semi-circular nut 10 and the sleeve 13 which key compresses a cylindrical hollow element 26 through which a gripping rod 27 is passed for turning the same. The lower end of the said element is equipped with a pair of oppositely disposed lugs 28 adapted to engage the keyway slots 11 in turnlng the member 1() to its locked position, the opposite reduced end of the cylindrical element being also provided with opposed lugs 28* to engage the slots 15 in tightening the sleeve 13.

While I have illustrated and described my invention with some degree of particularity, I realize that in practice various alterations therein may be made. I therefore reserve the right and privilege of changing the form ofthe details' of construction or otherwise altering the arrangement of the corarts without departing from the spirit cip the invention or the scope of the appended claims.

Having thus described my invention, what I claim as new and desirev to secure by United States Letters Patent is 1. A valve of the character described comprising a threaded stem having a concave base, a locking sleeve communicating with the interior of the stem, a valve'stem and valve head seated in the top of the sleeve, a lock nut and lock washer cooperating with the concave base whereby the valve as a unit lies below the surface of an inflatable body in which it' is positioned, and a cap for said threaded stem. l

2. A valve of the character described comprising an internally and externally threaded stem havin a concave base, a locking sleeve threaded y engaging and communieating with the interior of the said stem,

said sleeve having an enlarged base at one end and keyway slots for locking the same within the stem, the opposite end of the sleeve having a valve seat, a valve stem and valve head resiliently held in said seat, a lock nut and lock washer cooperating with the concave base whereby the valve as a unit lies below thel surface of an inflatable body in which it is positioned and a cap for the top of said threaded stem.

3. A valve of the character described comprising a threaded stem having an enlarged concave base, said stem being internally bored and threaded, a locking sleeve interitting said stem and communicatin with the interior thereof, a valve stem an valve head seated on the locking sleeve, a semicircular lock nut and lock washer engaging the threaded stem and a cap for the top of the last mentioned stem.

4. A valve ofthe character described comprising an externall threaded stem, said stem being internally bored throu h the length thereof and internally threa ed, an enlarged concave base formed with said stem, a locking sleeve externally threaded for engaging the internally threaded portion of the stem and communicating therewith, said sleeve havin an enlarged base and keyway slots therein for locking the same against the concave base of the stem, a valve stem and valve adapted to be seated on the upper end of the locking sleeve, said valve stem extending through the top of the first mentioned threaded stem, a lock nut and lock washer on the said threaded stem and' an internally bored cap threadedly7 engaging the upper end of the said threaded stem.

-In testimony whereof I aix my signature.

BERNARD TRAGER. [n a] 

